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/*
* Copyright (C) 2023 Mikhail Burakov. This file is part of receiver.
*
* receiver is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* receiver is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with receiver. If not, see <https://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <poll.h>
#include <signal.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "decode.h"
#include "util.h"
#include "window.h"
static volatile sig_atomic_t g_signal;
static void OnSignal(int status) { g_signal = status; }
int main(int argc, char* argv[]) {
(void)argc;
(void)argv;
struct AUTO(DecodeContext)* decode_context = DecodeContextCreate();
if (!decode_context) {
LOG("Failed to create decode context");
return EXIT_FAILURE;
}
struct AUTO(Window)* window = WindowCreate();
if (!window) {
LOG("Failed to create window");
return EXIT_FAILURE;
}
int events_fd = WindowGetEventsFd(window);
if (events_fd == -1) {
LOG("Failed to get events fd");
return EXIT_FAILURE;
}
if (signal(SIGINT, OnSignal) == SIG_ERR ||
signal(SIGTERM, OnSignal) == SIG_ERR) {
LOG("Failed to set signal handlers (%s)", strerror(errno));
return EXIT_FAILURE;
}
while (!g_signal) {
struct pollfd pfds[] = {
{.fd = STDIN_FILENO, .events = POLLIN},
{.fd = events_fd, .events = POLLIN},
};
switch (poll(pfds, LENGTH(pfds), -1)) {
case -1:
if (errno != EINTR) {
LOG("Failed to poll (%s)", strerror(errno));
return EXIT_FAILURE;
}
__attribute__((fallthrough));
case 0:
continue;
default:
break;
}
if (pfds[0].revents && !DecodeContextDecode(decode_context, STDIN_FILENO)) {
LOG("Failed to decode incoming data");
return EXIT_FAILURE;
}
if (pfds[1].revents && !WindowProcessEvents(window)) {
LOG("Failed to process window events");
return EXIT_FAILURE;
}
const struct Frame* frame = DecodeContextGetFrame(decode_context);
if (frame && !WindowRenderFrame(window, frame)) {
LOG("Failed to render frame");
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
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